Formation of bottle-caps.



' for securing them together or holding them- UNITED sTATEs PATENT oEEIoE.

CHARLES HAMMER,` 0F QUEENS, NEW YORK, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO AMERICAN ITE-TAL CAP CO., OF BROOKLYN, NEW YORK.

FORMATION OE BOTTLE-CAPS. I

' Specification of Letters Patent.

Patented oct. 2,. 1917.

Application led August 30, 1916. Serial No. 117,602.

To all whom z't'm'ag/ concern:

Be it known that'I, CHARLES HAMMER, a citizen of the United States, residing at Queens, in the county'of Queens and State of New York, have invented certain new "and useful Improvements in Formation of of which the following 1s a.

Bottle-Caps,` specification. v

This invention relates to the construction of bottle closures, especially to the kind used on bottles which contain catsup and similar liquids. The invention pertains particularly to the'character of a closure in which the side or body is formed of a strip of thin sheet metal curved into the proximate shape of a cylinder, with the ends of the strip lapping; and which form is provided with a disk suitably secured at its edge to one end ot the cylinder. The object of the invention is to provide special means integral with the lapping ends' of the cylinder in position, until the cap en is secured to the cylinder. A further obj` t is to provide such locking means, thdf will be reinforced by forming a bent edge at the open end of the cylinder.

In the accompanying drawings illustrating the embodiments of my invention, Figure 1 showsa plan and Fig. 2, an edge view of a blank for the body. blanklpartly joined at the a section on the line 1 -4 Fig. 3 shows'the ends.l Fig. 4 is of Fig. 3. Fig.

` 5 shows the body and end member assembled.

Fig. 6 shows the linished-v cap. In Figs. 1 and '2 I show a'blank 15 in the form of a fiat strip of thin 'sheet metalhaving near one end,l one or more lugs. As

shown I provide lugs 16 and 17 in the blank whereby a subformed by slits 18 and 19, stantially square lug is formed by bending the' metal between the slits as indicated in Fig. 2. Suitably engaging means is provided at the other end of the blank whereby when! the blank is bent into the form of a cylinder with lapping ends, as indicated'in Fig. 3, these ends will be held together. In this form I bend the end back on the line 2O to form a hook shaped bend 2l as shown in Figs2, and this bend is `caused to engage the inner face 4oi. the outer portion ,beneath the inwardly{benthlugsl6and 17, as clearly means for the body shown in Figs. 3 and 4. lVhen these parts are strongly pressed together they will form a closed meeting edge as indicated in Fig. 4C and hold the blank in the cylindrical torni;

An end member or diskn 22 is suitably secured to one end of the cylinder, Vas shown in Figs. 5 and 6. This can be done by any of the well known means such as interlocking the edge of thei disk with the edge of the cylinder. This will produce a finished cap as shown in Fig. 5. If desired the open end of the cylinder may have the edge doubled back as shown at 23 and which doubled portion includes the adjacent lug 16. This form of cap may be provided with the usual threaded bent portions 24 adaptedjo cause it to engage the threads on the bottle neck in the usual manner. The cap may be further provided with longitudinal corrugations between the threads and the top which corrugatimis include the upper lug 17 that has the effect of strengthening the connection at such portion.

It will be seen that on the inner face or wall, the bent edge 21 lies between the outer lapping'edge and its adjacent cylindrical portion, so that the raw edge is entirely protected from engaging with the bottle. This is very desirable as a raw edge is likely to be free from the coating or enamel on the body portion of the cylinder, and hence might become corroded from the contents of the bottle.

It will be further seen that the securing is entirelyk integral with the blank for the cylinder, and is easily formed by' merely providing the slits at one end and slightly raising the -intern'lediate portion to form the lugs; while the other end of the blank is merely bent back on itself to forma kind of lug extending through the end. Then the blank is bent into the form of a cylinder slightly smaller than the final form and the two lugs cause it to enter the angle of the bent end and then the cylinder slightly expanded and compressed at the meeting ends. The blank will befsecurely held in this cylindrical posi-` tion until the application of the disk to close one end nearest the opening and can be beaded or otherwisefreinforced. A portion of the bead 21 `is cut away, as at 2, so tlil'at when the end 39 is applied the doubled fold will not interfere with the locking ot the end disk.

It will be readily seen that in the several forms, the securing means for the cylinder are simply bent, or bent and cut, portions of the ends of the strip, that are readily caused to engage or interlock by merely bending the blank into the cylinder toi-m. While these constructions act as a temporary holding means until the end member is secured in position, they also strongly assist in retaining the body of the cap in its final position. l

Having thus described my invention what I claim is:-

l. A closure cap comprising a body portion tormerlf'f a sheet metal strip bent into the proximate form ot a cylinder with the end portiol'i's llapping and the inner edge heing viven a single bend back on itself outwart ly andllying beneath the lap-ping un bent cylindrical outer edge to conceal the raw edge and prevent its access from the inside of the cap, the outer lapping portions being provided with integral locking means, and an end `member closing one end of the cylinder.

A closure cap comprising a body portion formed of a sheet metal strip bent into the, proximate form of a cylinder with the end portionslapping and the inner edge being given a single bend back on itselt' outwardly -and lying beneath the lapping unlicnt c vlimlrical outer edge'to conceal the raw edge and prevent its access from the inside ot' the cap, the outer lapping portions being provided with locking means in the form of a lug, and an end member closing one end'ot' the cylinder.

-l. A closure cap comprising a body portion t'ormed of a sheet metal strip bent into the pwroximate form ot' a cylinder with the cud portions lapping aud the inner edge bent back on itself outwardly and lying beneath the lapping unbent cylindrical outer edge to conceal the raw edge and prevent its access .lrom the inside of the cap, a'n end member closing one end ofthe cylinder. the open end ot the cap being rolled into a bead, and integral locking means al said ,lapping portions that is included in said beaded end portion.

4. A closure cap comprising a body portion formed olf a sheet metal strip'bent into the proximate form ot acytinder with the end portions lapl'fi'ng and the inner edge bent back on itself ut\\"ardl and lying beneath the lapping unbentcylindrical outer edge to conceal the rawcdge and prevent its access from the inside of the cap, an end member closing one end of thecylinder. the open end of the cap being rolled into va bead, and-inl BEST AVAlLABLr.' LU? tegral locking means in the form of a lugat said lapping portions that is included in said beaded end portion.

A closure cap comprising a body portion formed of a sheet metal strip bent 1nto the proximate form of a cylinder with the end portions lappingand the inner edge bent back on itself outwardly and lying beneath the lapping unbent cylindrical outer edge to conceal the raw edge and prevent its access from the inside of the cap, thc outer lapping portions being provided with an integral lug that projects rearwardly beneath the said folded edge to lock the edges together, and an end member closing one end of the cyl- 'inder.

6. A closure cap comprising a body por` tion formed ofa sheet metal strip bent into the proximate form of a cylinder with the end portions lapping and the inner edge bent back on itselfoutwardly and lying beneath the lapping unbent cylindrical outer edge to conceal the raw edge and prevent its access trom the inside of the cap,fthe outer lapping portions lbeing provided with an integral lug that projects rearwardly beneathl the said folded edge to lock the edges together, and an end member closing'one end of the cyl inder, the open end of the Cap being rolled mto a bead that includes said lug.

7. A closure cap comprising a body portion formed of a sheet metal strip bent into the. proximate form of a cylinder with the end portions lapping and the inner edge bent back on itself outwardly and lying beneath the, lapping unbent 'cylindrical outer edge to conceal the raw edge and preventtits 'access from the inside of the cap, an end member closing one end of the cylinder, and integral locking means at said lapping portions to secure the edges together, the ey- Iindrical' portion being corrugated at Vthe lower end to form a scre\\'thread including he said lapping portions.

Q. A closure capcomprising a body portion 'formed of a sheet metal strip bent into ihe. proximate form of a cylinder with the uud portionsv lapping and the inner edge bent back'on itself outwardly and lying beneath the lapping unbent; cylimlrical outer edge to conceal the'raw edge and prevent its access from the inside of the cap, the outer lapping portions being provided with an integ al lug that. pro-jects rearwardly beneath the said Jfolded edge to lock the edges together, and an end member closing one end ot' the cylinder. the open end oi' the ca i being rolled into' a bead that includes saitl lng, the cylindrical portion being corrugated to torm a screw thread including the lapping portions and the beaded edge.

CHARLES HMIMER. 

